[INFO] fetching crate suan 0.0.4...
[INFO] checking suan-0.0.4 against master#7036449c774860a5b348dbbe01c20704c557382e for pr-98456
[INFO] extracting crate suan 0.0.4 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate suan 0.0.4 on toolchain 7036449c774860a5b348dbbe01c20704c557382e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7036449c774860a5b348dbbe01c20704c557382e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate suan 0.0.4
[INFO] finished tweaking crates.io crate suan 0.0.4
[INFO] tweaked toml for crates.io crate suan 0.0.4 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate suan 0.0.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7036449c774860a5b348dbbe01c20704c557382e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.16.5
[INFO] [stderr]   Downloaded indoc v1.0.6
[INFO] [stderr]   Downloaded pyo3-ffi v0.16.5
[INFO] [stderr]   Downloaded bigdecimal v0.3.0
[INFO] [stderr]   Downloaded lru v0.7.6
[INFO] [stderr]   Downloaded num-prime v0.4.1
[INFO] [stderr]   Downloaded unindent v0.1.9
[INFO] [stderr]   Downloaded suan-core v0.0.4
[INFO] [stderr]   Downloaded pyo3-build-config v0.16.5
[INFO] [stderr]   Downloaded pyo3-macros v0.16.5
[INFO] [stderr]   Downloaded pyo3 v0.16.5
[INFO] [stderr]   Downloaded num-irrational v0.3.0
[INFO] [stderr]   Downloaded num-order v1.0.4
[INFO] [stderr]   Downloaded num-modular v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+7036449c774860a5b348dbbe01c20704c557382e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19c8a02d312310ac5cbed9eb48a6e2ae94b076155f9e59ec385b239444cecc9b
[INFO] running `Command { std: "docker" "start" "-a" "19c8a02d312310ac5cbed9eb48a6e2ae94b076155f9e59ec385b239444cecc9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19c8a02d312310ac5cbed9eb48a6e2ae94b076155f9e59ec385b239444cecc9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19c8a02d312310ac5cbed9eb48a6e2ae94b076155f9e59ec385b239444cecc9b", kill_on_drop: false }`
[INFO] [stdout] 19c8a02d312310ac5cbed9eb48a6e2ae94b076155f9e59ec385b239444cecc9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+7036449c774860a5b348dbbe01c20704c557382e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6dd3e8c9cbeeb0461b6dfea3209b53b36fb9c29be4e926b01118186622d18123
[INFO] running `Command { std: "docker" "start" "-a" "6dd3e8c9cbeeb0461b6dfea3209b53b36fb9c29be4e926b01118186622d18123", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling target-lexicon v0.12.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling once_cell v1.12.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling libm v0.2.2
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]     Checking unindent v0.1.9
[INFO] [stderr]    Compiling indoc v1.0.6
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking wyz v0.5.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]     Checking bitvec v1.0.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling pyo3-build-config v0.16.5
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking lru v0.7.6
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]    Compiling pyo3-ffi v0.16.5
[INFO] [stderr]    Compiling pyo3 v0.16.5
[INFO] [stderr]     Checking num-complex v0.4.1
[INFO] [stderr]    Compiling pyo3-macros-backend v0.16.5
[INFO] [stderr]     Checking num-modular v0.5.1
[INFO] [stderr]     Checking bigdecimal v0.3.0
[INFO] [stderr]     Checking num-irrational v0.3.0
[INFO] [stderr]     Checking num-order v1.0.4
[INFO] [stderr]     Checking num-prime v0.4.1
[INFO] [stderr]    Compiling pyo3-macros v0.16.5
[INFO] [stderr]     Checking suan-core v0.0.4
[INFO] [stderr]     Checking suan v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/lib.rs:581:10
[INFO] [stdout]     |
[INFO] [stdout] 581 | fn parse(s: &str, ty: Option<u8>) -> PyResult<PySubject> {
[INFO] [stdout]     |          ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/lib.rs:581:10
[INFO] [stdout]     |
[INFO] [stdout] 581 | fn parse(s: &str, ty: Option<u8>) -> PyResult<PySubject> {
[INFO] [stdout]     |          ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.26s
[INFO] running `Command { std: "docker" "inspect" "6dd3e8c9cbeeb0461b6dfea3209b53b36fb9c29be4e926b01118186622d18123", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dd3e8c9cbeeb0461b6dfea3209b53b36fb9c29be4e926b01118186622d18123", kill_on_drop: false }`
[INFO] [stdout] 6dd3e8c9cbeeb0461b6dfea3209b53b36fb9c29be4e926b01118186622d18123